function initPicUpload(containerId,uploadId,baseUrl,picBaseUrl,initImg,successCallBack) {
	// 生成html
	var uploadIdd = containerId + uploadId;
	var btnId = uploadIdd + "btn";
	var imgId = uploadIdd + "img";
	var fileId = uploadIdd + "file";
//	var fileExt = "image/gif, image/jpeg";
	var fileExt = "image/gif, image/jpeg";
	var uploadstatusId = uploadIdd + "stimg";
	var uploaddescId = uploadIdd + "desc";
	var imgsrc = "\/img\/upload\/bg_noimg.jpg";
	if(initImg!=undefined && initImg!=null && initImg!="") {
		imgsrc = picBaseUrl + initImg;
	}else {
		imgsrc = baseUrl + imgsrc;
	}
	
	var waitImg = baseUrl + "\/img\/upload\/icon_wiat.png";
	var uploadingImg = baseUrl + "\/img\/upload\/icon_bass.png";
	
	var htmlstr = "<input type='hidden' id='" + uploadIdd + "' name='" + uploadId + "' />"
		+ "<div style='position: relative;display: inline-block;overflow:hidden;'><input type='file' id='"+fileId+"' accept='"+fileExt+"'"
		+"style='height:37px;position: absolute;right:0;top:0;font-size:100px;filter:alpha(opacity=0);-moz-opacity:0;-khtml-opacity:0;opacity:0;cursor:pointer;outline:none;*+font-size:20px;*+left:-230px;overflow:hiddle;'/>"
		+ "<input type='button' id='"+btnId+"' class='input_upload' onmousemove=move(event,'" + fileId + "') value='上传文件' /></div>" 
		+ "<div class='td_photobg'><div id='" + imgId + "' class='img_per'>上传文件展示区域</div>"
		+"<img id='" + uploadstatusId + "' src='"+waitImg+"' border='0' width='29' height='29' class='icon_rig'/>"
		+"<span id='" + uploaddescId + "' class='span_gray'>等待上传</span></div>";
    $("#"+containerId).html(htmlstr);
    
    $("#"+fileId).off("change");
	$("#"+fileId).on('change',function () {
        if ($("#"+fileId).val().length > 0) {
        	// 设置等待图片和文字
        	$("#"+uploadstatusId).attr("src",uploadingImg);
        	$("#"+uploaddescId).html("<span class='span_gray'>上传中...</span>");
        	$("#"+btnId).val("重新上传");
        	// 参数含义{用来预览图片的Img空间的ID,用于提交到后台的图片ID,baseUrl}
            fileUpload(uploadIdd,baseUrl,picBaseUrl,successCallBack);
        }
    });
}

function move(event,fileId){
	var ev=event||window.event;
    $("#"+fileId).css("left",ev.clientX+"px");
    $("#"+fileId).css("top",ev.clientY+"px");
}

function fileUpload(uploadId,baseurl,picBaseUrl,successCallBack) {
    $.ajaxFileUpload({
            url: baseurl+"/uploadFile.do", //用于文件上传的服务器端请求地址
            secureuri: false, //一般设置为false
            fileElementId: uploadId+"file", //文件上传空间的id属性  <input type="file" id="file" name="file" />
            dataType: 'json', //返回值类型 一般设置为json
            success: function (data, status)  //服务器成功响应处理函数
            {
                if(data.success==0) {
                	$("#"+uploadId+"img").html(data.fileName);
                	$("#"+uploadId).val(data.filePath);
                	
                	var uploadSuccess = baseurl + "\/img\/upload\/icon_rig.png";
                	$("#"+uploadId+"stimg").attr("src",uploadSuccess);
                	$("#"+uploadId+"desc").html("<span class='span_green'>上传成功！</span>");
                	
                	if(typeof successCallBack == "function") {
                		successCallBack();
                	}
                }else {
                	var uploadFail = baseurl + "\/img\/upload\/icon_err.png";
                	$("#"+uploadId+"stimg").attr("src",uploadFail);
                	$("#"+uploadId+"desc").html("<span class='span_red'>上传失败！</span>");
                	top.toastr.error(data.msg);
                }
            },
            error: function (data, status, e)//服务器响应失败处理函数
            {
            	top.toastr.error("网络异常，请检查网络是否流畅，或重新尝试！");
            }
    });
}

jQuery.extend({
	

    createUploadIframe: function(id, uri)
	{
			//create frame
            var frameId = 'jUploadFrame' + id;
            var iframeHtml = '<iframe id="' + frameId + '" name="' + frameId + '" style="position:absolute; top:-9999px; left:-9999px"';
			if(window.ActiveXObject)
			{
                if(typeof uri== 'boolean'){
					iframeHtml += ' src="' + 'javascript:false' + '"';

                }
                else if(typeof uri== 'string'){
					iframeHtml += ' src="' + uri + '"';

                }	
			}
			iframeHtml += ' />';
			jQuery(iframeHtml).appendTo(document.body);

            return jQuery('#' + frameId).get(0);			
    },
    createUploadForm: function(id, fileElementId, data)
	{
		//create form	
		var formId = 'jUploadForm' + id;
		var fileId = 'jUploadFile' + id;
		var form = jQuery('<form  action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>');	
		if(data)
		{
			for(var i in data)
			{
				jQuery('<input type="hidden" name="' + i + '" value="' + data[i] + '" />').appendTo(form);
			}			
		}		
		var oldElement = jQuery('#' + fileElementId);
		var newElement = jQuery(oldElement).clone();
		jQuery(oldElement).attr('id', fileId);
		jQuery(oldElement).attr('name', 'file');
		jQuery(oldElement).before(newElement);
		jQuery(oldElement).appendTo(form);


		
		//set attributes
		jQuery(form).css('position', 'absolute');
		jQuery(form).css('top', '-1200px');
		jQuery(form).css('left', '-1200px');
		jQuery(form).appendTo('body');		
		return form;
    },

    ajaxFileUpload: function(s) {
        // TODO introduce global settings, allowing the client to modify them for all requests, not only timeout		
        s = jQuery.extend({}, jQuery.ajaxSettings, s);
        var id = new Date().getTime();        
		var form = jQuery.createUploadForm(id, s.fileElementId, (typeof(s.data)=='undefined'?false:s.data));
		var io = jQuery.createUploadIframe(id, s.secureuri);
		var frameId = 'jUploadFrame' + id;
		var formId = 'jUploadForm' + id;		
        // Watch for a new set of requests
        if ( s.global && ! jQuery.active++ )
		{
			jQuery.event.trigger( "ajaxStart" );
		}            
        var requestDone = false;
        // Create the request object
        var xml = {};   
        if ( s.global )
            jQuery.event.trigger("ajaxSend", [xml, s]);
        // Wait for a response to come back
        var uploadCallback = function(isTimeout)
		{			
			var io = document.getElementById(frameId);
            try 
			{				
				if(io.contentWindow)
				{
					 xml.responseText = io.contentWindow.document.body?io.contentWindow.document.body.innerHTML:null;
                	 xml.responseXML = io.contentWindow.document.XMLDocument?io.contentWindow.document.XMLDocument:io.contentWindow.document;
					 
				}else if(io.contentDocument)
				{
					 xml.responseText = io.contentDocument.document.body?io.contentDocument.document.body.innerHTML:null;
                	xml.responseXML = io.contentDocument.document.XMLDocument?io.contentDocument.document.XMLDocument:io.contentDocument.document;
				}						
            }catch(e)
			{
				jQuery.handleError(s, xml, null, e);
			}
            if ( xml || isTimeout == "timeout") 
			{				
                requestDone = true;
                var status;
                try {
                    status = isTimeout != "timeout" ? "success" : "error";
                    // Make sure that the request was successful or notmodified
                    if ( status != "error" )
					{
                        // process the data (runs the xml through httpData regardless of callback)
                        var data = jQuery.uploadHttpData( xml, s.dataType );    
                        // If a local callback was specified, fire it and pass it the data
                        if ( s.success )
                            s.success( data, status );
    
                        // Fire the global callback
                        if( s.global )
                            jQuery.event.trigger( "ajaxSuccess", [xml, s] );
                    } else
                        jQuery.handleError(s, xml, status);
                } catch(e) 
				{
                    status = "error";
                    jQuery.handleError(s, xml, status, e);
                }

                // The request was completed
                if( s.global )
                    jQuery.event.trigger( "ajaxComplete", [xml, s] );

                // Handle the global AJAX counter
                if ( s.global && ! --jQuery.active )
                    jQuery.event.trigger( "ajaxStop" );

                // Process result
                if ( s.complete )
                    s.complete(xml, status);

                jQuery(io).unbind();

                setTimeout(function()
									{	try 
										{
											jQuery(io).remove();
											jQuery(form).remove();	
											
										} catch(e) 
										{
											jQuery.handleError(s, xml, null, e);
										}									

									}, 100);

                xml = null;

            }
        };
        // Timeout checker
        if ( s.timeout > 0 ) 
		{
            setTimeout(function(){
                // Check to see if the request is still happening
                if( !requestDone ) uploadCallback( "timeout" );
            }, s.timeout);
        }
        try 
		{

			var form = jQuery('#' + formId);
			jQuery(form).attr('action', s.url);
			jQuery(form).attr('method', 'POST');
			jQuery(form).attr('target', frameId);
            if(form.encoding)
			{
				jQuery(form).attr('encoding', 'multipart/form-data');      			
            }
            else
			{	
				jQuery(form).attr('enctype', 'multipart/form-data');			
            }			
            jQuery(form).submit();

        } catch(e) 
		{			
            jQuery.handleError(s, xml, null, e);
        }
		
		jQuery('#' + frameId).load(uploadCallback	);
        return {abort: function () {}};	

    },

    uploadHttpData: function( r, type ) {
        var data = !type;
        data = type == "xml" || data ? r.responseXML : r.responseText;
        // If the type is "script", eval it in global context
        if ( type == "script" )
            jQuery.globalEval( data );
        // Get the JavaScript object, if JSON is used.
        if ( type == "json" )
            eval( "data = " + data );
        // evaluate scripts within html
        if ( type == "html" )
            jQuery("<div>").html(data).evalScripts();

        return data;
    }
});

